Dental appliance



FIG. 1 is a perspective view of a dental appliance showing the first embodiment of my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view of the first embodiment thereof;

FIG. 4 is a right side view of the first embodiment thereof, the left side being a mirror image;

FIG. 5 is a bottom plan view of the first embodiment thereof;

FIG. 6 is a back elevational view of the first embodiment thereof;

FIG. 7 is a perspective view of the second embodiment thereof;

FIG. 8 is a top plan view thereof, the broken line drawing of a mouth is for illustrative purposes only and forms no part of the claimed design;

FIG. 9 is a front elevational view of the second embodiment thereof;

FIG. 10 is a right side elevational view of the second embodiment thereof, the left side being a mirror image;

FIG. 11 is a bottom plan view of the second embodiment thereof; and,

FIG. 12 is a back elevational view of the second embodiment thereof. 

The ornamental design for the dental appliance, as shown and described. 